... on inflatable ball,still called rolling ball ,zorb ball,walking ball.We use best 0.8mm pvc to make ... zorb ball and rolling ball.Throw in a bucket of water, hop inside the inflated Zorb ball, run, ... where you'd be protected by a massive cushion of air whilst sphereing down a hill. In the Zorb ... of a hill at speeds of up to 50 kilometres per hour !MOQ is one piece. roller ball (water ball,walking ...